Abstract: A digital DQPSK modulator according to the present: invention limits respective bands of symbol mapping data of I phase and Q phase obtained by applying differential encoding and mapping processings to a digital baseband signal, and multiplies the obtained data by the carrier signals by means of the digital filter. Such limiting of the bands and multiplication by the carrier signals are carried out by the digital filter in a time-divisionally multiplexed manner. The digital filter includes a circuit, for accumulating symbol mapping data for each of the I phase and the Q phase corresponding to a plurality of symbol sections, a plurality of ROMs corresponding to the plurality of symbol sections for storing a multiplication result of symbol data corresponding to a predetermined filter waveform and the carrier signal, and an adder for adding data output from these ROMs. The adder outputs a digital modulated signal which is, in turn, converted into an analog modulated signal by a D/A converter.

Abstract: A technique, specifically apparatus and an accompanying method, for use in, e.g., a "host" operating system (610), for properly updating a dynamically alterable channel program that controls an input/output (I/O) device so as to emulate a "guest" computer system, that employs dynamic address translation (DAT) in an I/O channel sub-system (150), on a "host" computer system (10) that does not. This technique performs this updating in a manner that significantly increases channel throughput so as to substantially reduce a performance degradation that would otherwise result from a lack of channel DAT on the host system. Specifically, our technique relies on program controlled interrupt (PCI) chaining coupled with use of "just-in-time" translation of each new virtual channel program segment generated by a guest operating system (620) and corresponding updating of channel program (415) then executing on the host computer system.

Abstract: A disc recording/reproducing apparatus according to the present invention intermittently records and reproduces compressed digital audio data in normal recording/reproduction. In high-speed dubbing of digital audio data, two of such apparatuses are used, wherein compressed digital audio data is continuously reproduced from a disc for reproduction by the reproduction side apparatus to be directly applied to the recording side apparatus and continuously recorded on a disc for recording. Thus, the compressed high-speed dubbing of the digital audio data can be achieved without increasing a rotation speed of the disc even in high-speed dubbing.

Abstract: An automatic focusing apparatus of a video camera automatically matches a focus in response to a video signal obtained from an image sensing circuit. The automatic focusing apparatus detects the level of a high frequency component of the video signal in order to supply a focus evaluating value which takes a maximum value in an in-focus position. A focusing motor controlling circuit performs an automatic focusing operation by a hill-climbing servo system based on the supplied focus evaluating value. A determination is made by employing a fuzzy inference with respect to the initialization of the direction of movement of a lens when the automatic focusing operation starts, the selection of a focusing area from a plurality of areas, and the reactivation of the automatic focusing operation due to a change of an object once the automatic focusing operation is completed.

Abstract: Apparatus for demodulating an incoming digitally phase modulated analog signal to reproduce symbol data carried by the signal. Specifically, the demodulator relies on first counting, on a free-running and modulo basis, pulses of a fixed-frequency reference clock signal to form a counted value. The incoming signal is converted to a one-bit phase modulated digital signal. At the occurrence of a pre-defined point in the one-bit phase modulated signal, typically a rising edge occurring at the symbol rate, the counted value is stored as phase information. Within each symbol period, a difference between current and immediately prior counted values, i.e. the latter being a current value but delayed by one symbol period, is determined. This difference, i.e. phase change data, is subsequently sampled and decoded to yield reproduced symbol data, as well as, used, through a phase locked loop, to generate a data clock and the symbol clock.

Abstract: A logically partitioned data processing system has a policy defining responsive actions to be undertaken by a process in one partition because of a monitored failure of an operating system in another partition. When such a failure occurs, the monitoring partition, if authorized, automatically communicates with a hypervisor to initiate the responsive actions on the failing partitions to reset and/or reconfigure that failing partition. Communication of action request between the partition and the hypervisor is accomplished without operator intervention, through a Service Call Logical Processor interface.

Abstract: A videophone at e.g., a called location, receives sound signals, video signals and control signals through a communication circuit from a communication line and originating at, e.g., a calling videophone. A start signal detecting means, within the called videophone detects a storage start requesting signal from received control signals originating at a calling videophone. At the time of such detection, a coding circuit within the called videophone again encodes the video signals, that are received by the communication circuit and continuously decoded by a decoding circuit, and transmitted by the calling videophone but only by one frame therefrom and stores the frame into a storage circuit. After storing the one frame, a change-over circuit in the called videophone switches to the storage circuit to continuously store the subsequent incoming coded video and sound signals for eventual playback.

Abstract: A circuit for lighting a fluorescent lamp. The present invention takes into account the fastidious characteristics of the fluorescent lamp, and during the momentary lighting of the fluorescent lamp. In order to reduce the temperature fluctuations, a separate pre-heating power is supplied. The circuit includes: a first resonance circuit consisting of a first capacitor connected to the opposite ends of the fluorescent lamp, a resonance inductor, a second capacitor, a first switch and a DC power source, serially connected; a second resonance circuit consisting of a second switch, a first capacitor, a resonance inductor, a third capacitor and a DC power source, serially connected; a switch control circuit for activating the first and second switches in an alternate manner. Before the lighting of the fluorescent lamp, the first and second resonance circuits are put to a resonance state, while, after the lighting of the fluorescent lamp, the resonance is eliminated.

Abstract: Apparatus and accompanying methods for inclusion in a Coriolis meter that substantially eliminate temperature induced measurement errors which might otherwise be produced by performance differences existing between the separate input channels contained in the meter. Specifically, two pairs of input channels are used in the meter. In operation, the meter repetitively measures the internal phase delay of each of these pairs and then subtracts the delay associated with each pair from actual flow based measurement data subsequently obtained therefrom. While one channel pair is measuring actual flow, the other channel pair is measuring its internal phase delay, with the channels being continuously cycled between these functions.

Abstract: An output from a solid state image sensing device spatially modulated by a color filter is A/D converted and stored in a field memory. Digital signals read from the field memory during electronic zooming are successively delayed by 1H period by means of first, second and third 1H delay elements connected in series. The output from the field memory and outputs from the first, second and third 1H delay elements are separated into luminance components and line sequential color components by first to fourth Y/C separating circuits, respectively. A first set of three primary color signals are calculated based on outputs from the first, second and third Y/C separating circuits, and a second set of three primary color signals are calculated based on outputs from the second, third and fourth Y/C separating circuits.

Abstract: An audio data dubbing system includes a reproduction side device and a recording side device. The reproduction side device reproduces intermittently from a reproduction side disc compressed audio data on the basis of a predetermined reproducing unit, which is first stored in a reproduction side memory and read out continuously therefrom to be provided as compressed audio data for recording. Recording side device first stores in a recording side memory compressed audio data for recording provided from the reproduction side device and reads out the same therefrom intermittently in a predetermined recording unit to be recorded on a recording side disc. The recording side device suspends the reproduction operation of compressed audio data from the reproduction side disc in the reproduction side device when the data amount in the recording side memory is increased to exceed a first reference value.

Abstract: A disc recorder containing a compressed data memory for storing compressed audio data to be recorded to a disc or reproduced from a disc. When a reduction pause state is set during reproduction operation, reading out of data from a compressed data memory is limited. Therefore, discontinuity of reproduced audio at the time of pause cancellation is prevented. When a recording pause state is set during recording operation, the compressed data memory is made empty. Therefore, discontinuity of the recording audio is also prevented at the time of pause cancellation.

Abstract: Exposure control apparatus, and various accompanying methods, for use in a photographic camera for improving the overall quality of photographed images, i.e. increasing the number of acceptable and higher quality images, that are produced by the camera for user-selected non-standard display sizes and/or different focal length photographing modes over that obtainable by adherence to ISO/ANSI exposure standards. The quality improvement is attained through user selection of a desired display size and/or focal length photographing mode for each image to be captured followed by an optimization, for that size and mode, of various photographic exposure parameters (exposure settings and, where appropriate, flash parameters). The invention violates the ISO/ANSI exposure standards where necessary to improve image quality, for the desired display size and focal length photographing mode, beyond that which would result from adherence to these standards.

Abstract: An automatic focusing apparatus of a video camera automatically matches a focus in response to a video signal obtained from an image sensing circuit. The automatic focusing apparatus detects the level of a high frequency component of the video signal in order to supply a focus evaluating value which takes a maximum value in an in-focus position. A focusing motor controlling circuit performs an automatic focusing operation by a hill-climbing servo system based on the supplied focus evaluating value. A determination is made by employing a fuzzy inference with respect to the initialization of the direction of movement of a lens when the automatic focusing operation starts, the selection of a focusing area from a plurality of areas, and the reactivation of the automatic focusing operation due to a change of an object after once the automatic focusing operation is completed.

Abstract: A drop out compensation circuit for resolving the unnaturalness of the pictorial image due to a long period drop out compensation is disclosed. This drop out compensation circuit comprises a drop out detecting circuit, a delay circuit for delaying a drop out detected output, and a circuit for limiting the drop out compensation to the delay time period by the delay circuit in response to the drop out detected output and the delay signal of the delay circuit. Accordingly, the drop out compensation is performed only within a range wherein it is visually natural, so that unnatural pictorial image does not appear.

Abstract: A recording medium comprises a recording layer, a birefringent layer, and a reflecting layer. The recording layer is formed of a material whose optical rotatory power is alterable such that in one state no optical rotatory power is present and, in a second state, optical rotatory power is present. Information is recorded in the recording layer by selectively altering the state of the recording layer. The birefringent layer is formed of a material having constant birefringence without regard to the state of the recording layer. The reflecting layer reflects a light beam transmitted through the recording layer and the birefringent layer to reintroduce the beam into the birefringent layer and the recording layer. A method of reproducing information from this recording medium applies a polarized light beam to the recording medium and detects change of the polarized state of the polarized light beam reflected from the recording medium, thereby reading the information recorded in the recording layer.

Abstract: An oven (1800) for use in conjunction with a dynamic thermal-mechanical testing system that exhibits both self-resistive and self-inductive heating whenever a sufficiently large alternating (AC) electrical current is passed through the oven. In one embodiment, the oven is fabricated from a material which undergoes self-resistive heating to radiantly heat an internal volume of the oven. The oven also includes appropriately shaped heating sections (1830), which undergoes self-resistive and self-inductive heating to compensate for heat losses into a support for the oven.

Abstract: A method for automatically adjusting an optical axis of a laser resonator. Specifically, the angle of a mirror in a laser resonator is changed in a very small stepwise increments, and the laser output before the very little change is compared to the laser output after the incremental change. If the laser output after the very small incremental change is larger than the laser output before the very small incremental change, the angle is automatically changed by a very small amount in the same direction as the previous increment. If the laser output after the very small incremental change is smaller than the previous laser output measurement, the angle is automatically changed by a very small amount in the opposite direction. Thus the optical axis of the laser resonator is adjusted automatically.

Abstract: A very high frequency omni-range (VOR) receiver for use in aircraft radio-navigation, which provides an indication of course deviation that is substantially immune to effects such as reflections in transmitted VOR signals, transients occurring in an aircraft's electrical system and propeller and/or rotor modulations of an incoming VOR signal and the like which are all unrelated to actual course deviation, is disclosed. The receiver phase synchronizes a signal from a 1.08 MHz crystal oscillator to a 30 Hz reference signal and a 30 Hz variable signal; both the reference and variable signals are received from a VOR ground station. As a result of the phase synchronization, the receiver produces timing pulses which are accurately phase synchronized to a synchronized reference pulse stream derived from the 30 Hz reference signal. Additionally, the receiver produces a synchronized variable pulse stream that is derived from the 30 Hz variable signal.

Abstract: A storage rack for relatively flat objects (6), such as CD-cassettes, essentially consisting of two three-dimensional elements (10, 11), each element having been bent so as to form approximately a dihedral angle, in which at a fixed pitch distance a series of slotted recesses (3) are provided having a slot width corresponding to the height of the object (6) to be stored. The pitch distance of the recesses (3) is approximately twice the height of the object, the recesses (3) in one element (10) being staggered relatively to the recesses (3) in the other element (11) by half the pitch distance, in such a manner that the two elements (10, 11) can be slid one into the other with the angular points (12) turned towards each other.